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Biofuels would be wonderful if they didn’t starve people while feeding trucks, cars and airplanes. Living with such a constraint, though, might prove to be productive, profitable, and environmentally sound. The Guardian describes efforts in America’s tobacco country to grow a crop that will be less destructive of human lungs and hearts if it is consumed in jet engines rather than in cigarettes. “’We’re experimenting with varieties that were discarded 50 years ago by traditional tobacco growers because the flavors were poor or the plants didn’t have enough nicotine,’ explains Tyton [BioEnergy Systems] co-founder Peter Majeranowski.” In a case that oddly enough is GMO free, “Researchers are pioneering selective breeding techniques and genetic engineering to increase tobacco’s sugar and seed …